<!DOCTYPE html>
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<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
    </head>
    <body>
       <?php $Math = "90" ;
       $Html = "90" ;
       $PE = "90";
       $Ave = ($Math + $Html + $PE)/3;
       
       define('PI',3.14);
       const pi01 = 3.1415;
       echo pi01;?></br>
       
       <table>
           <tr>
           <th>课程</th>
           <th>分数</th>
           </tr>
           <tr>
               <td>Math</td>
               <td><?php echo $Math; ?></td>
           </tr>
           <tr>
               <td>Html</td>
               <td><?php echo $Html; ?></td>
           </tr>
           <tr>
               <td>PE</td>
               <td><?php echo $PE; ?></td>
           </tr>
           <tr>
               <td>平均分</td>
               <td><?php echo $Ave; ?></td>
           </tr>
           
       </table>
    </body>
</html>
